I've got a 1985 5.0 V8 It won't start 80% of the time there doesn't seem to be any rime or reason as to when it does start and doesn't. As far as I can tell the fuel pumps work. the ignition module has been replaced. Coil is good Distributor is good plugs are good. everything seems to be operating properly. But most of the time it won;t start. When it does it runs fine but when you turn it off and try to restart it sometimes it starts and sometimes it doesn't. Monday I went to it started it ran it and drove it for half hour then shut it off and it restarted.then let it sit for 1/2 hour and it started again an hour later it would not start. and hasn't started sinceand this is wednesday. the last time it started was the thursday of last week ??????
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Get a testing light and connect it to the injector wires. You can have fuel pressure, but if the injectors do not open, it will not get fuel.
Test with starting fluid to see if fuel is the problem. If you have spark and no response after adding the starting fluid, its something else. Since the timing chain has nothing to do with the crankshaft sensor sending a signal as the crankshaft turns, the top half of the engine may not be turning to move the valves. Look in any breather holes in the valve cover to see if the tappets are moving.
1-5-4-2-6-3-7-8 The rotor turns counter-clockwise. Make sure to keep #7 and #8 spark plug wires separated. The 5.0L had a problem with 7 and 8 cross-firing because they fire so close to each other. Ford changed the firing order on that engine, in later years , because of that reason. Hope this helps ya... Cobra :-)